JP2005222405A - Recommendation method of cosmetic foundation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To find a new relation between hue, brightness, and gloss which show flesh color beautifully and which is widely applicable to general consumer, and recommend to customers a cosmetic foundation that makes the flesh color more beautiful by using the relation. <P>SOLUTION: The colorimetry of a customer's skin is performed, and hue and brightness of the customer's flesh color to be recommended to the customer is decided based on the colorimetric result; next, preferrable gloss intensity is given to the flesh color having the hue and the brightness based on positive correlation between brightness and gloss intensity, and the flesh color obtained thereby is recommended to the customer. Furthermore the foundation suitable for realizing the flesh color with the consumer's skin is recommended. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a method for recommending a preferred foundation to a customer at a store of a cosmetics store or the like, and a system for implementing the method.

  In addition to brightness and color, it is known that the elements that determine the impression of skin are glossy. For example, Non-Patent Document 1 has a foundation of various hues and lightness under a specific brand name. In the foundation group, it is described that a foundation for producing light-skinned light skin is preferably suppressed in gloss, and a dark and dark foundation having a lightness is preferably improved in gloss.

  In addition, when a cosmetic salesperson or beauty staff recommends a specific foundation to a customer, in order for the customer to recognize the impression that the customer has made up with that foundation, a simulation image of the customer applying makeup with the foundation is used. Various forming methods have been proposed (Patent Documents 1 and 2), and among them, there is a method of simulating not only hue and brightness but also gloss of a customer's face image (Patent Document 3). ).

'97 Autumn / Winter Beauty Reader, Skin Care Foundation, pp. 48-49, Shiseido Co., Ltd., September 21, 1997 JP 2000-194835 A JP 2001-238727 A JP 2003-256812 A

  As described above, conventionally, gloss as well as hue and lightness is recognized as an element that affects the impression of makeup skin. With respect to this gloss, it is also recognized that the gloss intensity (gloss intensity) perceived when the same amount of reflected surface light is added varies depending on the brightness of the ground. Applying these findings to the relationship between skin color and gloss in the foundation finish, the foundation finish with the same gloss level feels that the gloss intensity is stronger in dark black skin and the gloss intensity is weaker in fair skin. it is conceivable that.

  According to the description in Non-Patent Document 1, it is recommended that the amount of gloss to be applied is large in dark skin and less in fair skin. However, according to the addition of such a gloss amount, the perceived gloss is stronger in dark black skin and weaker in fair skin, causing glare and shine on the finish in the former, and in the latter in the finish. It leads to lack of elasticity.

  On the other hand, the present invention aims to find an optimum relationship between brightness and gloss perceived as a favorable finish for general consumers, and to recommend a foundation that makes the skin color more beautiful based on the knowledge. And

  As a result of examining the optimum relationship that can be widely applied to general consumers regarding the relationship between the skin color and gloss in the finish of the foundation, the present inventors have found that the amount of gloss imparted is small in dark black skin, and in the fair skin We have found a relationship that a finish with a large amount of gloss is preferred. That is, among the various skin colors, the skin color that the general consumer feels beautiful has a positive correlation between the brightness and the gloss intensity. Therefore, for a skin color of a certain hue, brightness, and gloss intensity, the customer has the same hue. When a skin color with higher brightness was preferred, it was found that it is preferable to recommend a skin with a higher gloss strength, and the present invention was completed.

  Therefore, the present invention is a recommended method for a foundation that gives a customer a preferable skin color, and determines the hue and brightness of the skin color to be presented to the customer based on the customer's skin color, and then the brightness and the skin color having the hue and brightness. Provided is a method of giving a preferable gloss intensity based on a positive correlation with the gloss intensity, presenting the skin color obtained thereby to the customer, and recommending a foundation suitable for realizing the skin color on the customer's skin.

Furthermore, the present invention is a system for implementing the above-mentioned foundation recommendation method.
(A) skin color measurement device,
(B) a photographing device for taking a customer's face image using polarized light,
(C) A computing device that forms a simulation image when the customer applies the foundation to the face, and associates the change data of the face image and the part number of the foundation when the foundation is applied to the face; and
(D) a display device for displaying a simulation image;
A recommended system for a foundation consisting of
In the formation of the simulation image, the arithmetic unit (C)
(a) Extracting internally reflected light image and surface reflected light image from customer face image,
(b) By combining the extracted internal reflection image and the change data of the internal reflection light of the face image by the foundation to form an internal reflection correction image,
(c) combining the extracted surface reflected light image and the change data of the surface reflected light of the face image by the foundation to form a surface reflected light corrected image;
(d) A simulation image is formed by combining the internally reflected light corrected image and the surface reflected light corrected image,
The change data of the internally reflected light includes skin color brightness,
The change data of the surface reflection light includes gloss intensity,
The arithmetic unit (C) provides a recommendation system for a foundation that can change the gloss intensity based on a positive correlation between the brightness and the gloss intensity.

  According to the recommendation method of the foundation of the present invention, prior to recommending the foundation to the customer, when recommending the skin color of a specific makeup skin to the customer, the skin color recommended to the customer is a preferable relationship between brightness and gloss strength. Satisfy a positive correlation acquired in advance. Therefore, regarding the combination of hue, lightness, and gloss strength, a foundation in which the skin color looks most beautiful can be recommended to the customer.

  Further, according to the foundation recommendation system of the present invention, the above-described foundation recommendation method can be implemented. In particular, during implementation, a simulation image is formed when the recommended foundation is applied to the face by the customer, so that the customer can accurately recognize the impression when the foundation is applied to the face.

  Hereinafter, the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic configuration diagram of a foundation recommendation system suitable for implementing the foundation recommendation method of the present invention.

  This system forms a colorimetric device 1 that measures skin color, a photographing device 2 that takes a customer's face image using polarized light, if necessary, a simulation image when the customer applies a foundation to the face, and the foundation The calculation device 3 associates the change data of the face image with the product number of the foundation and the display device 4 that displays the simulation image, the product information of the foundation, and the like, and is further displayed on the display device 4 as necessary. A printer 5 for printing contents is connected.

  In the recommended method of the foundation of the present invention, preferably, first, the color of the customer's skin is measured with the color measuring device 1, and the skin color recommended to the customer is determined as the skin color of the makeup skin subjected to the foundation based on the color measurement result. Define hue and brightness. Usually, this skin color is the same color as the measured customer's skin color, or a color obtained by changing the hue and brightness from the color measurement result according to the customer's preference.

  In determining the hue and brightness of the skin color recommended to the customer, these do not necessarily have to be specified strictly by numerical values. Prepare multiple color samples (for example, color samples divided into three groups of white, standard, and black for each hue) and change the hue and lightness in advance. It is possible to set the hue and lightness of the skin color recommended to the customer by appropriately selecting the closest one or the one according to the customer's request.

  After determining the hue and lightness of the skin color recommended to the customer in this way, a preferable gloss strength is given to the skin color. The present invention is characterized by the method of determining the gloss strength, and is based on a favorable relationship between brightness and gloss strength, that is, a positive correlation between brightness and gloss strength, obtained in advance by a questionnaire survey using an image. To determine the gloss strength.

  Here, the gloss intensity refers to the intensity of the surface reflection light of the skin to which the foundation is applied, and refers to the average brightness of the face region or face portion (excluding hair, eyebrows, eyeballs, and lips) in the surface reflection light image.

  Hue refers to the hue of the internal reflection light of the skin to which the foundation is applied. For example, the lower part of the cheek in the internal reflection image (around the intersection of a straight line drawn vertically from the corner of the eye and a straight line drawn straight from the mouth corner) 1 cm The average hue of the four skin color areas can be used.

  The lightness refers to the lightness of the internally reflected light of the skin to which the foundation is applied. For example, the average lightness of the skin color area of 1 cm square on the lower cheek (same as above) in the internally reflected light image can be used.

  As shown in FIG. 2, the lightness and the gloss intensity have a positive correlation. As the brightness increases in one hue (when it becomes whitish), the gloss intensity that makes the skin color with the highest brightness appear the most beautiful, the same hue. When the brightness becomes low (when it becomes blackish), it means that the gloss strength that most beautifully shows the skin color with the low brightness tends to be low.

  As shown in FIG. 4, this trend shows that a face image having a specific hue, brightness, and gloss intensity is displayed on the half of the screen, and a face image having a different hue intensity with the same hue and brightness is processed on the other half of the screen. It was obtained by conducting a questionnaire survey of 16 women aged 20 to 39 years old with regard to various hues and lightnesses. FIG. 3 shows the result of a scale analysis of this questionnaire survey by the Scheffe paired comparison method. From the figure, the reddish skin color is most beautifully felt when the brightness is high (red and white), and when the gloss intensity of the skin color is increased by 10% from the default value that does not increase or decrease the gloss intensity by image processing. On the other hand, when the lightness is low (red and black), it is shown that the glossiness of the skin color can be felt most beautifully with the default value that does not increase or decrease the glossiness by image processing. Supports the relationship between luster and luster strength. Similarly, the results for the yellowish skin color also support the relationship between the brightness and the gloss intensity that make the above-mentioned skin color look beautiful.

  In the present invention, after determining the hue and lightness of the skin color recommended to the customer, when giving the gloss intensity correlated with the brightness to the skin color, the degree to increase or decrease the gloss intensity with the increase or decrease of the brightness, It may be determined according to the result of the questionnaire survey described above. Usually, in the skin of Japanese women, the brightness distribution is close to a normal distribution, the average brightness is about 6.5 in terms of brightness, and the standard deviation is about 0.3. The results of the questionnaire survey depend on the respondent's age, facial features, makeup preferences, etc., but in light of this normal distribution, the skin color with the skin lightness increased or decreased by 0.3 from the average value looks the most beautiful Is when the gloss strength is increased or decreased by 5 to 20%. Therefore, for example, skin colors in a specific hue range are divided into three groups of “high”, “standard”, and “low” according to their lightness, and the skin color with lightness of “high” is 10% than the skin tone of “standard”. The gloss strength is increased, and the skin strength of “low” brightness may be 10% lower than the “standard” skin color. The degree of increase / decrease in the gloss intensity can be confirmed by measuring the gloss intensity (surface reflection intensity) of the foundation coating film with a variable angle spectrocolorimeter. GCMS (manufactured by Murakami Color Research Laboratory) can be used.

  When the skin tone, brightness, and gloss strength recommended to the customer are determined and the customer is asked to confirm the skin color, a simulation image is created by changing the skin color of the customer's own face image or model face image. It is preferable to do this. Thereby, the customer can easily confirm whether or not the recommended skin color is preferable to him / her.

  There is no restriction | limiting in particular about the formation method of this simulation image, A well-known method can be used (patent document 1, patent document 2, patent document 3, etc.). For example, the photographing device 2 is used to take a facial image of a customer's or model's face or makeup face using polarized light, and the arithmetic device 3 separates the facial image into an internally reflected light image and a surface reflected light image, and an internally reflected light image. Is corrected according to the recommended skin color hue and brightness, while the surface reflected light image is corrected according to the recommended skin color gloss intensity, and the corrected internal reflected light image and the surface reflected light image are combined. As a result, a simulation image is formed and output to the display device 4.

  If the customer agrees with the recommended skin color as the preferred skin color, a foundation as an existing product suitable for realizing the skin color on the customer's skin is recommended. Therefore, the arithmetic device 3 uses in advance a database that correlates change data of face images when various foundations are applied to the face, and the brand name, product number, manufacturer name, product description, etc. of the foundation. Keep it available.

  In general, commercially available foundations constitute a group of foundations with multiple foundations with different hues, brightness, and gloss under a specific brand name. The recommended foundation here is brightness and gloss strength. Is preferably selected from foundation groups that have been adjusted to have a positive correlation. Thereby, a commercially available foundation that can realize the skin color recommended to the customer with the skin of the customer can be easily selected. In the foundation, the gloss strength can be adjusted by changing the kind and amount of the pearl pigment and oil.

  In addition, when recommending a foundation as a product to the customer, there may be a discrepancy between the makeup skin color when the foundation is applied to the face by the customer and the skin color recommended by the customer described above. It is preferable to form a simulation image when the customer applies to the face so that the impression can be confirmed when the customer applies the foundation to the face. Or you may form the simulation image at the time of giving the foundation to the face based on the face image of a model.

  A known method can also be used as a method of forming a simulation image when a recommended foundation is applied to the face by the customer (Patent Document 3). For example, the face of the customer's face or makeup face using the imaging device 2 using polarized light. An image is taken, and the data of the face image is separated into an internal reflection light image and a surface reflection light image by the arithmetic device 3, while the change data of the internal reflection light relating to the hue, brightness, etc. is obtained as change data of the face image due to the foundation. And surface reflection light change data related to luster intensity, etc., and the internal reflection light image and the internal reflection light change data are combined to form an internal reflection correction image. The surface change light correction image is formed by combining the light change data and the internal reflection light correction image and the surface reflection light correction image are combined to form a simulation image.

  In the recommendation method of the foundation of the present invention, each stage of providing the recommended foundation to the customer from the selection of the skin color desired by the customer can be repeated until the customer is satisfied.

  The present invention is useful when recommending a preferred foundation to customers in store sales and the like.

It is a schematic block diagram of the recommendation system of a foundation. It is a general relationship diagram of lightness of skin color and gloss intensity. It is the result of the questionnaire survey which analyzed the scale by the pair comparison method of Scheffe. It is explanatory drawing of a questionnaire survey method.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Color measuring device 2 Imaging device 3 Arithmetic device 4 Display device 5 Printer

Claims (5)

  This is a recommended method for a foundation that gives customers a preferable skin color, and determines the hue and lightness of the skin color to be presented to the customer based on the customer's skin color, and then the skin color having the hue and lightness has a positive value of brightness and gloss strength. A method of giving a preferable gloss intensity based on the correlation, presenting the skin color obtained thereby to the customer, and recommending a foundation suitable for realizing the skin color on the customer's skin.   The method of recommending a foundation according to claim 1, wherein, when presenting a specific skin color to a customer, a simulation image is formed by changing the skin color of the customer's own face image or the model's face image to the skin color presented to the customer.   The method of recommending a foundation according to claim 1, wherein, when recommending a specific foundation to a customer, a simulation image is formed when the foundation is applied based on the face image of the customer or the face image of the model.   The customer's face image is taken and the image data is separated into the internal reflection light image and the surface reflection light image. On the other hand, the change data of the internal reflection light and the change data of the surface reflection light are used as the change data of the face image by the foundation. And obtaining an internally reflected light corrected image by combining the internally reflected light image and the internal reflected light change data, and combining the surface reflected light image and the surface reflected light change data. The foundation recommendation method according to claim 1, wherein a simulation image in which a foundation is applied to a face is formed by forming a surface reflection light correction image and combining the obtained internal reflection light correction image and the surface reflection light correction image. (A) skin color measurement device,
(B) a photographing device for taking a customer's face image using polarized light,
(C) A computing device that forms a simulation image when the customer applies the foundation to the face, and associates the change data of the face image and the part number of the foundation when the foundation is applied to the face; and
(D) a display device for displaying a simulation image;
A recommended system for a foundation consisting of
In the formation of the simulation image, the arithmetic unit (C)
(a) Extracting internally reflected light image and surface reflected light image from customer face image,
(b) By combining the extracted internal reflection image and the change data of the internal reflection light of the face image by the foundation to form an internal reflection correction image,
(c) combining the extracted surface reflected light image and the change data of the surface reflected light of the face image by the foundation to form a surface reflected light corrected image;
(d) A simulation image is formed by combining the internally reflected light corrected image and the surface reflected light corrected image,
The change data of the internally reflected light includes skin color brightness,
The change data of the surface reflection light includes gloss intensity,
The computing device (C) is a recommended system for foundations that can change the gloss intensity based on the positive correlation between brightness and gloss intensity.

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